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要注意的一点是，Ubuntu下的对库和依赖的顺序有要求，提示找不到链接符号什么的，需要根据pkgconfig修改下位置。

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要注意的一点是，Ubuntu下的对库和依赖的顺序有要求，提示找不到链接符号什么的，需要根据pkgconfig修改下位置。

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                    <h1>FFMpeg QT跨平台播放器六 Linux和windows兼容配置</h1>
                    
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                            Posted by Cyrus on
                        
                        
                            2019-09-21
                        
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                <h3 id="一、Ubuntu下编译"><a href="#一、Ubuntu下编译" class="headerlink" title="一、Ubuntu下编译"></a>一、Ubuntu下编译</h3><p>Ubuntu下面的编译跟Mac下面一样，详见第一篇的FFMpeg编译。下面看看Ubuntu下面QT .pro文件的配置。</p>
<ul>
<li>要注意的一点是，Ubuntu下的对库和依赖的顺序有要求，提示找不到链接符号什么的，需要根据pkgconfig修改下位置。</li>
</ul>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line">unix: !macx &#123;</span><br><span class="line">INCLUDEPATH += $$PWD/libFFmpeg/Linux/include</span><br><span class="line">LIBS += -L$$PWD/libFFmpeg/Linux/lib</span><br><span class="line">LIBS +=  -lavfilter  \</span><br><span class="line">        -lavformat  \</span><br><span class="line">        -lavcodec   \</span><br><span class="line">        -lavutil    \</span><br><span class="line">        -lswresample \</span><br><span class="line">        -lswscale</span><br><span class="line">LIBS += -lm -lxcb -lxcb-shm -lxcb-shape -lxcb -lxcb-xfixes \</span><br><span class="line">        -lxcb-render -lxcb-shape -lxcb -lasound -lSDL2 -lsndio -lX11 -lva -lva-drm -lvdpau</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="二、windows下集成"><a href="#二、windows下集成" class="headerlink" title="二、windows下集成"></a>二、windows下集成</h3><p>windows下面我们采用动态库链接的方式，到官网下载地址<a href="https://ffmpeg.zeranoe.com/builds/，下载share(动态库)和dev(开发时提供符号和重定向信息)。" target="_blank" rel="noopener">https://ffmpeg.zeranoe.com/builds/，下载share(动态库)和dev(开发时提供符号和重定向信息)。</a><br><img src="http://cyrus_huang.gitee.io/blog/2019/09/21/FFMpeg-QT跨平台播放器六-Linux和windows兼容配置/win_1.png" alt=""></p>
<p>开发时，我们把dev文件夹下面的include和lib放到项目下面。.pro文件配置如下：<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">win32 &#123;</span><br><span class="line">INCLUDEPATH += $$PWD/libFFmpeg/win32/include</span><br><span class="line">LIBS += $$PWD/libFFmpeg/win32/lib/avfilter.lib  \</span><br><span class="line">        $$PWD/libFFmpeg/win32/lib/avformat.lib  \</span><br><span class="line">        $$PWD/libFFmpeg/win32/lib/avcodec.lib   \</span><br><span class="line">        $$PWD/libFFmpeg/win32/lib/swscale.lib   \</span><br><span class="line">        $$PWD/libFFmpeg/win32/lib/swresample.lib</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></p>
<p>编译通过后，再找到编译生成的文件夹，把shared/bin目录下的.dll动态库文件拷到程序同级目录。<br><img src="http://cyrus_huang.gitee.io/blog/2019/09/21/FFMpeg-QT跨平台播放器六-Linux和windows兼容配置/win_2.png" alt=""></p>
<h3 id="三、运行效果"><a href="#三、运行效果" class="headerlink" title="三、运行效果"></a>三、运行效果</h3><p>mac<br><img src="http://cyrus_huang.gitee.io/blog/2019/09/21/FFMpeg-QT跨平台播放器六-Linux和windows兼容配置/result_mac.png" alt=""></p>
<p>windows<br><img src="http://cyrus_huang.gitee.io/blog/2019/09/21/FFMpeg-QT跨平台播放器六-Linux和windows兼容配置/result_win.png" alt=""></p>
<p>ubuntu<br><img src="http://cyrus_huang.gitee.io/blog/2019/09/21/FFMpeg-QT跨平台播放器六-Linux和windows兼容配置/result_unix.png" alt=""></p>


                
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